package com.bit.captcha.Controller;

import cn.hutool.captcha.CaptchaUtil;
import cn.hutool.captcha.ShearCaptcha;
import com.bit.captcha.model.CaptchaProperties;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import lombok.val;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.xml.crypto.Data;
import java.io.IOException;
import java.util.Date;


@RequestMapping("/captcha")
@RestController
public class CaptchaController {
    @Autowired
    private CaptchaProperties captchaProperties;
    private final static long VALID_TIME = 30*60*1000L;
    @RequestMapping("/getCaptcha")
    public void getCaptcha(HttpSession session,HttpServletResponse response){

        response.setContentType("image/jpeg");
        response.setHeader("Progma","No_cache");
        try {
            ShearCaptcha captcha = CaptchaUtil.createShearCaptcha(captchaProperties.getWidth(),captchaProperties.getHeight());
            String code = captcha.getCode();
            session.setAttribute(captchaProperties.getSession().getKey(),code);
            session.setAttribute(captchaProperties.getSession().getDate(), new Date());
            captcha.write(response.getOutputStream());
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
    @RequestMapping("/check")
    public boolean check(String captcha,HttpSession session){
        if(!StringUtils.hasLength(captcha)){
            return false;
        }
        String code = (String)session.getAttribute(captchaProperties.getSession().getKey());
        Date date = (Date) session.getAttribute(captchaProperties.getSession().getDate());
        if(captcha.equalsIgnoreCase(code) &&date!=null&& System.currentTimeMillis()-date.getTime()<VALID_TIME){
            return true;
        }
        return false;
    }
}
